Operating device for valve-grinders



F. F. WOODS.

OPERATING DEVICE FOR VALVE GRINDERS.

APPLICATION FILED OCT. 19. 1916.

1,331,307. Patented Feb. 17,1920.

V FRANK FERNA NDO WVOODS, OF WICHITA, KANSAS.

OPERATING DEVICE FOR VALVE-GRINDERS.

Specification of Letters Patent.

Patented Feb. 17, 1920.

Application filed October 19, 1916. Serial No. 126,585.

To all whom it may concern:

Be it known that I, FRANK F. Woons, a citizen of the United States, residing at Wichita, in county of Sedgwick and State of Kansas, have invented certain new and useful Improvements in Operating Devices for Valve-Grinders, of which the following is a specification.

This invention relates to an improvement in valve-grinders for grinding the valves in gas, gasolene and similar engines.

Some of the objects accomplished are as follows First, to provide a device that is effective in operation;

Second, a machine that is simple in construction;

Third, to make a valve-grinder that will do rapid work, with a minimum amount of labor.

Other objects of the invention will appear as the nature of the same becomes better understood.

In the accompanying drawings Figure 1 is a side elevation of the complete device;

Fig. 2 shows the spindle detached; and

Fig. 3 is a sectional view of the handle, disclosing the ball thrust and a portion of the spindle.

Fig. 4 is a detail view of the left-hand side of Fig. 1.

The frame 1 is preferably made of wire, as shown, although it may be made of fiat strip or other suitable material. The wire is coiled around to form the bearings 1 and 1 for a spindle 3, as well as the guide-rings 1 and 1 through which the cord to be hereinafter mentioned passes.

The frame is made rigid by coiling one end portion around the other as shown at 1 A spool 2 is secured to spindle 3 by means of the pin 4. The handle 5 is bored to fit over the upper end of spindle 3. The upper end of spindle 3 is provided with a groove 12, as shown. A key 6 passes through. a hole in the handle and through the groove 12 at one side of the spindle 3 to prevent the handle becoming detached.

Mounted in the hole in the handle, and above the spindle, is a hardened steel ball 7. The lower end of spindle 3 is provided with a wrench of any suitable form to operate the valve shown in dotted lines. The wrench 8 is secured within the slot 13 in the spindle 3 by the pin 9. It is so located as to permit a slight pivotal movement of the wrench 8.

The cord 10 passes around the spool 2, be-

ing secured at its ends to the ends of the how 11. The bow is formed into a hook 14: at one of its ends, and knots 15 are tied in the cord 10, so that the desired tension may be given the same.

To operate the device, the operator holds the handle 5 in one hand, and the handle end 16 of the bow in the other. By moving the bow backward and forward, a rapid motion is imparted to spool 2, first in one direction and then in the other.

I claim:

1. A valve-grinder comprising a frame, a spindle journaled in the frame, a handle swiveled to the spindle, a bow and cord, the latter guided by the frame and wound about the spindle, whereby the reciprocation of the bow imparts rotary motion to the spindle, and means for varying the tension of the cord.

2. In a valve-grinder, the combination with a frame having oppositely-formed bearings and oppositely located guides therein, and a spindle journaled in the bearings, of a bow having a handle at one end and a hook at the other, and a cord secured to the handle passed through the guides of the frame and around the spindle, and provided with means at one end whereby it is connected with the hook of the bow and its tension is regulated.

3. In a valve-grinder, the combination with a frame having oppositely formed bearings and oppositely-located guides therein, and a spindle journaled in the bearings,

of a bow having a handle at one end and a hook at the other, a cord secured to the handle passed through the guides of the frame and around the spindle, and provided with means at one end whereby it is connected with the hook of the bow and its tension is regulated, and a handle swiveled to one end of the spindle.

4. A valve-grinder comprising a frame, a spindle journaled therein, a handle having socket portion telescoping one end of the spindle, a ball between the end of the spindle and the socket, which telescopes the latter, the spindle circumferentially grooved within the socket of the handle, and a key extending through a hole in the handle and 7 into the groove in the spindle, whereby the handle is swiveled with a. ball-bearing upon the end of the spindle.

which passes through end of the spindle, and a bew, the cord of and is Wound around the spindle, whereby to rotate thelatter as the bow is recipro' outed.

In testimony 7 FRANK FERNANDO WOODS.

whereof I afiix my signature.

guides in the frame 10 t r 

